A QAM modulator lives or dies on constellation cleanliness β a sloppy QAM signal won't lock or breaks up on long runs. The MINIMOD 2+ earned NAB Product of the Year, CE Pro Best, and CEDIA Best of Show because it produces a dense, broadcast-grade QAM channel: +45 dBmV output and MER above 45 dB, so TVs lock instantly and the picture stays perfect from headend to the farthest set.

The QAM Modulator Integrators Have Trusted Since 2017
When a building runs on cable/QAM and you need a clean QAM channel every set tunes instantly, the VeCOAX MINIMOD 2+ is the QAM modulator professionals specify β award-winning, US-built, proven on 50,000+ installations.
HDMI In β A J.83B QAM Channel on Every TV
A QAM modulator maps your HDMI source onto a J.83B quadrature-amplitude carrier β the exact format cable systems use β so cable-ready TVs tune it natively with no set-top box.
- Connect any HDMI source β cable box, media player, camera, or signage PC
- Assign the QAM channel (2β158) on the LCD; the HDMI becomes a cable channel
- Feed the QAM carrier into the coax plant or a combiner alongside existing channels
- Auto-scan each cable-mode TV and the QAM channel locks in at 1080p
- No QAM tuner box per TV, no cable-company truck roll, no headend rebuild
- Add modulators on neighboring QAM channels for a complete cable lineup

Put a QAM Channel on the Line in Under a Minute. No Computer Required.
Most QAM modulators hide channel mapping in a web console. Here the QAM channel, annex, symbol rate, and level are all on a color LCD β commission a cable channel without a laptop.
- The display shows the active QAM channel, frequency, and lock at all times
- Select the QAM annex and channel directly with the front-panel buttons
- Fully standalone β no console software, no serial dongle, no driver
- Power up β set the QAM channel β land coax β scan β on the cable lineup

Your QAM Channel Sits Right Beside Your Cable Channels
QAM is the native language of cable plants β but flip to ATSC, DVB-C, or ISDB-T on the panel if a site needs it. The carrier blends straight into the existing channel map.
Because the modulator outputs a true J.83B QAM carrier, the HDMI source you mapped behaves like any operator channel. Cable-mode TVs list it among the QAM lineup after a scan β no set-top box, no headend re-engineering.
The same unit also produces ATSC, DVB-T/C, and ISDB-T carriers, so it serves North American QAM plants and worldwide systems alike β HD, 4K, or 8K.
Manage Your QAM Modulators From Any Browser
The panel commissions the channel; the optional LAN page lets headend techs re-map QAM channels and watch carrier health from the rack without a site visit.
- Re-map the QAM channel and adjust level remotely over the network
- Manage a row of QAM modulators from one browser console
- Works on any computer or phone browser β no client to install
- Live carrier status confirms each QAM channel is locked and clean

Your QAM Channel Carries Broadcast-Grade Audio
A QAM channel carries its audio in-band. The modulator multiplexes broadcast Dolby Digital into the QAM stream so sound reaches every cable-ready TV perfectly aligned.
- Dolby Digital / LPCM is multiplexed into the QAM transport stream
- Audio tracks the picture across every splitter and long coax leg β no drift
- Carries 5.1 surround intact from compatible HDMI sources
- Voice, music, and effects arrive clean on every cable-tuned set

Three Connections. Done.
HDMI in. QAM carrier out. One scan. Your source joins the cable lineup on every TV in Full HD with synced audio.
Adding a QAM channel takes minutes: connect the HDMI source, feed the F-type QAM output into the cable distribution (or a passive combiner), assign a free QAM channel on the LCD, and rescan cable-mode TVs. No headend overhaul, no per-TV QAM boxes, no IT ticket β the coax plant carries the new channel.
A QAM Modulator With Broadcast-Headend Quality
Palm-sized aluminum build, dense J.83B QAM modulation, and a front-panel LCD β the professional way to put a QAM channel on coax. Made in USA with a 5-year warranty.
The VeCOAX MINIMOD 2+ produces QAM channels the way cable operators do it: full 1080p at 60fps MPEG-2 video, Dolby Digital audio, +45 dBmV output to drive long runs, a built-in color LCD for computer-free setup, and QAM channels 2β158 plus every other worldwide standard. One small box turns any HDMI device into a QAM cable channel that reaches unlimited TVs over existing coax.
Stack Multiple QAM Channels in 1RU
Need several QAM channels? Mount up to four MINIMOD 2+ QAM modulators in a single 1RU rack panel for a tidy, professional multi-channel headend.
The optional 1RU rack panel holds up to four QAM modulators in one rack space, with front-panel access and proper airflow. Combine their outputs with a passive combiner and you have a clean multi-channel QAM lineup riding a single coax β ideal for AV closets, server rooms, and broadcast facilities.
10+ QAM Channels with the MiniBlade Kit
For large QAM lineups, the VeCOAX MiniBlade system packs 10 or more modulator units into a single rack β each fully independent so one QAM channel can never take down the rest.
When you need many QAM channels at once, the MiniBlade rack kit delivers maximum density with independent power per unit. There is no shared point of failure: every QAM channel runs on its own, which is exactly what 24/7 commercial systems demand.
Every Cable-Ready TV Tunes the QAM Channel β HD, 4K, and 8K
The J.83B QAM channel is a standard cable broadcast, so any cable-ready tuner decodes it β from an older HD set to a new 8K display.
Because the carrier is genuine QAM, compatibility is automatic on cable-mode TVs. The modulator finalizes color, frame rate, and audio sync internally, so the QAM channel renders correctly on every brand and resolution with no per-set setup.
Built to Modulate QAM Flawlessly
Every detail exists to put your HDMI source on a J.83B QAM channel with instant TV lock and effortless setup.
Front-Panel Color LCD
Set your QAM channel, frequency, and output level on the built-in display β no laptop, no web hunting.
One-Click Channel Recall
Save and recall the full QAM channel map in one tap when re-racking a unit.
QAM Channels 2β158
Place the QAM carrier to the hertz and label the channel for each cable lineup.
1080p@60 Motion Encoding
1080p60 motion encoding keeps live action crisp on the largest cable displays.
MPEG-2 Broadcast Standard
MPEG-2 over QAM is precisely what cable tuners expect for universal compatibility.
+45 dBmV Output
A +45 dBmV QAM carrier drives long cable plants and splitter trees with no amp.
MER >45 dB
MER beyond broadcast spec keeps the QAM channel pristine at the last drop.
Full Digital DDS
DDS synthesis stacks QAM carriers tightly with zero spurious bleed between channels.
Secure Web Remote
Secured browser control for QAM modulators living in headend racks.
Unlimited TVs
One QAM channel serves five cable TVs or five thousand at no per-set cost.
Built-In Test Pattern
A color-bar QAM carrier appears with no HDMI present to verify the cable run.
HDMI Licensed + Full EDID
HDMI-licensed input with full EDID control for a guaranteed source handshake.
See a QAM Channel Created Over Coax in Real Time
From wiring an HDMI source to tuning the new QAM channel on every cable TV β the whole process in under five minutes.
Full walkthrough: HDMI hookup, QAM channel assignment on the LCD, carrier distribution over coax, cable-TV scan, and stacking multiple QAM channels. Duration: 4 min 30 sec.
Where a QAM Modulator Shines
Hotels & Resorts
Insert an amenity QAM channel into the guest cable lineup in every room.
Sports Bars
Add a game feed as a QAM channel every cable-tuned bar TV receives.
Churches
Carry the worship camera as a QAM channel to overflow and lobby sets.
Hospitals
Insert patient-education QAM channels into the hospital cable plant.
Schools
Add a campus-announcement QAM channel to the existing cable lineup.
Corporate
Insert dashboards as QAM channels for every conference-room cable TV.
Residential
Add one home QAM channel that every cable-ready TV in the house tunes.
Government
Deliver secure QAM channels on the facility cable plant.
Why This Is the Best QAM Modulator
Cheap QAM modulators wander off frequency and stack dirty carriers that pixelate neighbors. The MINIMOD 2+ holds a locked, broadcast-clean QAM channel across the whole cable plant.
QAM Modulator β Technical Specifications
| Video Input | Compatible HDMI 2.0b / 2.1 for Latest HD / 4K Full Quality Sources β also compatible with legacy older HDMI versions (HDMI licensed, HDCP compliant) |
| Input Resolution | 1080p | 1080i | 720p | 576p | 576i | 480p | 480i @ 24/29.97/50/59.94/60fps |
| Video Encoding | MPEG-2 broadcast-standard encoding |
| Output Resolution | Same as input β up to 1080p Full HD |
| Audio Format | Dolby Digital Stereo LPCM |
| RF Frequency Range | 54β990 MHz β selectable down to the Hz steps |
| RF Channel Bandwidth | 6/7/8 MHz (model specific to broadcast format) |
| QAM Channel Range | 2β158 J.83B QAM | also 2β83 ATSC | Full range for other standards | Channel or Frequency selectable |
| Modulation Standards | QAM (Annex A/B/C), ATSC, DVB-T, DVB-C, ISDB-T |
| RF Output Power | -8 dBm | ~45 dBmV (adjustable) |
| MER (Modulation Error Ratio) | >45 dB β Broadcast Quality |
| Frequency Synthesis | Full Digital DDS β zero spurious & harmonics |
| RF Connector | F-Type Dual, 75Ξ© |
| Coaxial Cable Support | RG59 | RG6 (75Ξ© characteristic impedance) |
| RF Transmission Distance | β€3,000 m (~9,800 ft) β extendable with inline RF amplifiers |
| Display | Large high-resolution color LCD |
| Control | Front-panel buttons + Secure web browser remote (login-protected) |
| Network | 10/100/1000 Gigabit Ethernet RJ-45 β network compatible |
| Power Input | AC 100Vβ240V 50/60Hz, DC 12V/1A (adapter included) |
| Max Working Current | 850 mA @ 12V |
| Operating Temperature | -10Β°C to +45Β°C |
| Storage Temperature | -20Β°C to +60Β°C |
| Operating Humidity | 10β90% RH (no condensation) |
| Storage Humidity | 5β95% RH (no condensation) |
| Unit Dimensions (LΓWΓH) | 6β³ Γ 3β³ (4.5β³ with wall mount ears) Γ 1β³ |
| Unit Weight | 1 lb (0.45 kg) |
| Shipping Box (LΓWΓH) | 11β³ Γ 6β³ Γ 9.3β³ |
| Shipping Weight | 1 lb |
| Patent | Hardware, software, and display UI are PVIβs patent |
| Warranty | 5-Year Manufacturer Warranty |
| Origin | Designed & Made in USA |
QAM Modulator For HDMI - Frequently Asked Questions
What is a QAM modulator for HDMI?
How does a QAM modulator for HDMI work over coax?
Why use a QAM modulator for HDMI instead of HDMI cables?
Which sources work with this QAM modulator for HDMI?
Which TVs can receive the qam modulator channel?
Does this QAM modulator for HDMI support QAM cable mode?
Does this QAM modulator for HDMI support ATSC antenna mode?
Can this QAM modulator for HDMI coexist with existing TV channels?
How many TVs can one QAM modulator for HDMI feed?
How far can qam modulator travel over coax?
Can I use existing coax with this QAM modulator for HDMI?
Do I need a computer to set up this QAM modulator for HDMI?
Why is the color LCD important for qam modulator?
Can I manage this QAM modulator for HDMI remotely?
What picture quality does this QAM modulator for HDMI deliver?
Does this QAM modulator for HDMI work with 4K and 8K TVs?
Can I add more qam modulator channels later?
Where is this QAM modulator for HDMI used most often?
How is this QAM modulator for HDMI different from a basic QAM encoder?
Is the MINIMOD 2+ good for professional qam modulator?
Is this QAM modulator for HDMI HDCP compliant?
What warranty and support come with this QAM modulator for HDMI?
Complete Your QAM Distribution System
Everything you need to combine, rack, and scale multiple QAM channels.
Coax Combiner / Splitter (13-Port)
Ultra-low-loss 13-port coaxial combiner optimized for HD/4K digital TV. Bidirectional β use as combiner or splitter.
1RU Rack Panel (4-Slot)
Professional 19-inch rack mount panel. Install up to 4 MINIMOD 2+ units in a single 1RU space.
VeCOAX MINIMOD-4K Ultra HD
Upgrade to full 4K HDR over coax. Mix and match with MINIMOD 2+ units on the same system.
MINIMOD 2+ β 3-Pack Bundle
Three award-winning MINIMOD 2+ modulators β three independent HD channels at a bundle price below three single units.
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Ready to Put a QAM Channel on Every TV?
Free shipping over $500 Β· 5-year warranty Β· Free unlimited tech support Β· Made in USA



